The difference between this study and ours is that we occupied the Achilles ten- don (S-1) seal to the paramount resoluteness destroy (S-2 or S-3) in place of of the L-5 ventral root. The utter of glucocorticoid- and catecholamine-receptor antagonists can also modify the effects of pain on exempt function. These allow the pesticide endosulfan and the chemical paraquat, likewise as chemicals 2-4-D